SEC EDGAR 8-KNov 6$KOP

KOPPERS REPORTS THIRD QUARTER 2026 RESULTS

Koppers Holdings Inc. (KOP) filed an SEC Form 8-K — Results of Operations and Financial Condition. Exhibit 99.1 News Release FOR IMMEDIATE RELEASE For Information: Quynh McGuire Vice President, Investor Relations 412 227 2049 McGuireQT@koppers.com Koppers Holdings Inc. 436 Seventh Avenue Pittsburgh, PA 15219-1800 Tel 412 227 2001 www.koppers.com KOPPERS REPORTS THIRD QUARTER 2

Original reporting

SEC EDGAR 8-K

Published Nov 6, 2026, 1:13 PM UTC

Analysis

AlphAI AI DeskAI-generated

Added to AlphAI Nov 6, 2026, 1:15 PM UTC. Informational, not investment advice.

How this was made

AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.

About AlphAI AI Desk Scoring methodology Report an issue

AlphAI market briefEarnings

Primary signal

$KOP

Bearish

high confidence

Mentioned

$KOP

Relevance

7/10

AlphAI data visualization · based on SEC EDGAR 8-K

Decision brief

The 30-second read

$KOPBearishHigh

Why it matters

The earnings miss and margin compression are likely to weigh on the stock in the near term, though strong cash generation offers some support.

Market read

The earnings release provides fresh data that can drive short‑term trading decisions on KOP.

What to watch

Record operating cash flow and free cash flow generation may support the share price longer term.

Relevance 7/10Novelty 8/10Timing: post-market release

Background

Koppers Holdings Inc. (NYSE: KOP) filed an SEC Form 8‑K reporting its third‑quarter 2026 financial results.

Company-level read

Ticker impact

AI estimates · verify against primary disclosures

$KOPBearishHigh confidence

Context

Koppers Holdings reported Q3 2026 results with net sales of $499.1M and EPS of $0.75, a decline from the prior year quarter.

Expected impact

likely downward pressure as investors digest earnings miss and margin compression

Evidence & confidence

The decline in net income (38%) and adjusted EBITDA (18%) signals weaker profitability, which typically prompts a sell-off.

Market effects

Sector

Results highlight pressure on the chemicals and materials sector from higher raw material and logistics costs.

Regional

U.S. industrial chemicals may see modest weakness as cost headwinds persist.

Global

Limited; the news is company‑specific without broader macro implications.

Counterpoint

What could challenge this read

If cash flow remains strong and debt reduction continues, the stock could be undervalued despite earnings miss.

Key entities

company
Koppers Holdings Inc.
Integrated global provider of treated wood products, wood treatment chemicals, and carbon compounds.

Read at source ← All news

$KOPMed

Koppers 3Q 2026: Revenue $499.1M, EPS $0.75 — 10-Q Summary

Koppers reported 3Q 2026 revenue of $499.1M, up 2.8% YoY, but net income fell 38.2% to $14.7M. Performance Chemicals sales rose 11.9%, while lower crosstie pricing and higher costs impacted profitability in other segments. The company also shut down operations at its Stickney facility.

tradingview.comNov 6

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Koppers earnings missed by $0.57, revenue fell short of estimates

Koppers (KOP) reported Q3 EPS of $0.77, missing estimates by $0.57, with revenue at $499.1M, below the $512.35M consensus. FY 2026 guidance was $3.10-$3.25 EPS and $1.90B revenue, both below analyst expectations. The stock is down 21.57% over 3 months but up 48.46% year-over-year.

investing.comNov 6

$KOPMedAI 9/10

Koppers Holdings Non-GAAP EPS of $0.77 misses by $0.66, revenue of $499.1M misses by $24.23M (KOP:NYSE)

Koppers Holdings (KOP) reported Q3 Non-GAAP EPS of $0.77, missing estimates by $0.66. Revenue was $499.1M, up 2.8% year-over-year but $24.23M below expectations. The company also provided updated 2025 and 2026 forecasts for net sales, adjusted EBITDA, and other financial metrics.

seekingalpha.comNov 6

$KOPMedAI 8/10

Koppers: Q3 Earnings Snapshot

Koppers Holdings Inc. (KOP) reported Q3 net income of $14.7M, or 75 cents per share, missing analyst expectations of $1.37 per share. Revenue was $499.1M, also below forecasts of $518.6M. The company expects full-year earnings of $3.10-$3.25 per share and revenue of $1.9B.

finance.yahoo.comNov 6

$KOPMedAI 8/10

Sales rose to $499.1 million as Koppers' net income fell 38%

Koppers reported Q3 2026 sales of $499.1M, up 2.8% YoY, but net income fell 38.2% to $14.7M. Adjusted EBITDA declined 18.2% to $58M due to higher costs. CEO Leroy Ball cited macroeconomic challenges but highlighted record year-to-date cash flow. Performance Chemicals saw sales and EBITDA growth, while other segments faced declines.

stocktitan.netNov 6

$KOPMedAI 8/10